hoonigane
5+ Year Contributor
- 123
- 10
- Jan 4, 2018
-
Siauliai,
Europe
Hello, I need some help with my car. To whoever that doesn't want to read long essay here are the problems and questions (I dont want to start 5 threads :/) :
1. Performance is unstable (change from day to day without doing anything to the car)
2. Climbs high rpms very slowly (from 5k to 7k. I don't even push it after 7k because car sounds like its struggling hard). It accelerates faster if you shift at 5-6k rpm than if I let it reach redline.
3. I noticed changes in MPG's too, because I travel a lot with it. I drive same distance (150km) and it uses up different amounts of fuel. And yes I use cruise control to travel at same speed.
4. Does 1G gs has o2 sensor after cat? I think 2G does. Im thinking maybe it could be clogged cat and thinking of removing it, because I will change the exhaust when I turbo it anyway..
5. Does oil pan check work for gs and is it accurate? My oil pan is flat where it meets transmission, some article said that meant it was 6 bolt.
6. If there is an issue with fuel delivery like fuel filter, pump or injector clogged, power loss would be constant right?
Car is 92 GS. I have plans to turbo it, but I want to make it stable and driveable in the first place. My problem is pretty weird and I'm not too sure where to start. So my problem is that the car's performance feel very unstable. I mean one day it pulls really nicely troughout whole rpm range and another day it feels super slugish even after 3k rpm acceleration is slow feels like driving on 1.5k or something. Car used to die sometimes when I pressed clutch. Idle surges, sounds like a misfire on idle (again sometimes it does that, sometimes it doesn't). I used to buy cheaper fuel (same octane) just from different station. Recently I changed gas stations and noticed the car doesn't die anymore when i press the clutch. So I poured those snake oil injector cleaners thinking maybe bad quality fuel was clogging up something and it would clean it. Car hasn't died since on idle so I thought that bad fuel was the cause of performance loss too, but even when using good quality fuel acceleration differs a lot. I'm thinking maybe misfire, it would make sense that it's not constant, but it doesn't feel like it, engine isn't shaking or anything. I tried like 3 sets of different plugs 2 ngk's and 1 beru, new spark wires, new air filter, new water pump, new timing belt (changed it myself couple months ago, but didn't had that light to check the timing, but performance wouldn't change from day to day if timing was off im thinking). Car is not modified, it has turbo camshafts, egr delete, intake silencer removed, fart can and thats about it. Anyone faced anything similar and could tell me where to look? You guys are more experienced than me so tell me please. If needed I will upload couple pulls tomorrow.
Edit: You can smell gasoline in interior sometimes really badly when idling in place. Doesn't happen often but sometimes. Few of my friends noticed it too and we all agree that it wasn't doing it before.
1. Performance is unstable (change from day to day without doing anything to the car)
2. Climbs high rpms very slowly (from 5k to 7k. I don't even push it after 7k because car sounds like its struggling hard). It accelerates faster if you shift at 5-6k rpm than if I let it reach redline.
3. I noticed changes in MPG's too, because I travel a lot with it. I drive same distance (150km) and it uses up different amounts of fuel. And yes I use cruise control to travel at same speed.
4. Does 1G gs has o2 sensor after cat? I think 2G does. Im thinking maybe it could be clogged cat and thinking of removing it, because I will change the exhaust when I turbo it anyway..
5. Does oil pan check work for gs and is it accurate? My oil pan is flat where it meets transmission, some article said that meant it was 6 bolt.
6. If there is an issue with fuel delivery like fuel filter, pump or injector clogged, power loss would be constant right?
Car is 92 GS. I have plans to turbo it, but I want to make it stable and driveable in the first place. My problem is pretty weird and I'm not too sure where to start. So my problem is that the car's performance feel very unstable. I mean one day it pulls really nicely troughout whole rpm range and another day it feels super slugish even after 3k rpm acceleration is slow feels like driving on 1.5k or something. Car used to die sometimes when I pressed clutch. Idle surges, sounds like a misfire on idle (again sometimes it does that, sometimes it doesn't). I used to buy cheaper fuel (same octane) just from different station. Recently I changed gas stations and noticed the car doesn't die anymore when i press the clutch. So I poured those snake oil injector cleaners thinking maybe bad quality fuel was clogging up something and it would clean it. Car hasn't died since on idle so I thought that bad fuel was the cause of performance loss too, but even when using good quality fuel acceleration differs a lot. I'm thinking maybe misfire, it would make sense that it's not constant, but it doesn't feel like it, engine isn't shaking or anything. I tried like 3 sets of different plugs 2 ngk's and 1 beru, new spark wires, new air filter, new water pump, new timing belt (changed it myself couple months ago, but didn't had that light to check the timing, but performance wouldn't change from day to day if timing was off im thinking). Car is not modified, it has turbo camshafts, egr delete, intake silencer removed, fart can and thats about it. Anyone faced anything similar and could tell me where to look? You guys are more experienced than me so tell me please. If needed I will upload couple pulls tomorrow.
Edit: You can smell gasoline in interior sometimes really badly when idling in place. Doesn't happen often but sometimes. Few of my friends noticed it too and we all agree that it wasn't doing it before.
Last edited: